Granary body assembly of grain storage device and grain storage device

The embodiment of the utility model provides a granary body assembly of a grain storage device and the grain storage device. The granary body assembly of the grain storage device comprises a granary body, wherein an opening is formed in the granary body; the bin cover covers the opening; the electromagnetic induction heating piece is arranged between the bin body and the bin cover and used for hot melting the portions, located on the periphery of the electromagnetic induction heating piece, of the bin body and the bin cover during high-frequency welding, the bin body and the bin cover are made of thermoplastic materials, and the portions, located on the periphery of the electromagnetic induction heating piece, of the bin body and the bin cover are connected in a hot melting mode. The bin cover is connected to the bin body in a sealed mode. According to the bin body assembly provided by the embodiment of the utility model, due to the adoption of a high-frequency welding process, the coverage area of the electr